Fluid-pressure apparatus.



A. L.v KNIGHT. FLUID PHESSUREAPPARATUS. APPLICATION FILED AUG29| i917.

1,300, 28 1 Patented Apr. 15, 1919.

2 SHEETSHEET l.'

Gigi.

/lll

A'. L. KNIGHT. FLUID PRESSURE APPARA-TUS.

APPLICATION FILED AUG.29. I9I7.

Patented Apr. 15,1919.

2 SHEETS-SHEET 2.

IN VEN TOF? ./znm z. mimi,

" we`Speei1"ic ttion of Letters Patent;

. f Yhun;nlrfi'iiissURE' APRATUS.

Patented Api, k1s, 191e.

f.' A15initiationnietliurgfustae, 1,917; 'serialirmssa l to 'the acc'ompanyingj drawings forming a ,pa-rt of this spe'cication and" toA l the .characters of,referencefinarked therebn.lr

tion of typemetal elemeiits"-ofM r` forms andhasffor 4 such My invention relates to jointed apparatus providedy with 'a plurality, of jlufid pressure containingA cavities fory A J or 'in VEcommunicatioi'r ywith 'aV joint between members of the apparatus and has h for `rits principal object Ato provide fhsuch apparatus with means whereby iuidy leakage' from one trolledand directed p I Y prevent it from reaching anotheryvofsaid cavities or ducts to cause injuijy'to orari iin-i properfunctioning of the apparatus;vv 'More specifically thejj inventionk relatesr to 'E water(- cooled molding 'apparatus for the: produc# its main objectfin structure to control leakagefromfthe wa rj conducting cavities or fchannels wherexthe n latter intersectfjoints betweencertainlff theo mold ymembers `andiprevent; such *leakage from reachingv the castingv vcavity*k where" Akit would injure theinold orginterfere withlits producing a proper product; 'Theinvention is 'of especial importance rin,con'n ectionf` wij-lig apparatus embodying joints'- whieh,

to the requirementsfofthe-situation u nnot be iirnily. yclamped tight,'notably ingconriec# tion with which is movablex relatively .to the'jtlier.

i' L This feature olfithe inventiqngwillgbe`more Y Wil tially onthe line 24-2 of Figi l 'x fully pointed out and other ebject's."thereoi'y Ql appear in c'oiinecti'o'llwith .he'following' description "of the e,Inbodiment` showny in the i, 'Figure 1 is aplanw. mold ducing ,typem'etal :elements: Y of println forms, A l t i Fig. 2 is a sectional viewthereoil"v ls listan,.-

Fig. 3 is aA bottomyplangof" of the fsame,' 'reference/be? the lbase-3k of't eimold.; 'fprovidedff blockand the lower member of thiefrcvmty type-bl ock, and

Fig, .lis a signed to Ashow particularly the arrangementi of :communicating lwaterfcooling chan-,

nels' 'the mold.

-- ,The meid 'illustrated ein its general hl acteristics similar cto-fthe printers-strip ma terial mold disclosed ,in United States 7VPat#` ent-:Na 1,222,415gg.datedjlApril110th, 19117;

that ,the mold is well' known commercially, a',

moltenjmetal intofthe mold cavity, and like mechanisms, especiallyas ksuch mechanisms v'may correspond -,substantially withr mecha-f nisms -iound in `'machines manufaturediby vthefyLanstonvr Monotype [Machine Co, which;

have beenfin extenl'sivehuse` formanyyears, l

Referring to the accompanying dr suitablev nozzle, seat for the Y receptie nozzle ,"for the proper'finfjection ofk Y metal IintQthe mold" cavity.v Said base 3.

perspective of various parts of themoldj'unassembled, this View being de` 'and'fbecauseof such disclosure and the'fanCtl y,

xetaileel description ''thereof finotneeesf Y sary herein, nor risit'necessary to shower" i l describeoperatingmechanism` o r stops for, the fmoldbladc,lneansforthe injectionjof tending iqngituainany Qffthemeiaibiadfe? ,i y l Y and formed the` upwa' the' base jblocl."

blade yis.,sl'idable on n liner ,Y orl iQint block 1,41,

theftOPW-Orks in @Qllbtwith the point bleek holding device forjthe ,matrix'iis secured holeA for; this screw 'intheftype blockjfS` bei4 in:Fig.j14.I1/'T, e mold blade' thickness ,corresponding toV the elementito be cast; 'The wgetv T11EL for which are provided inthe type blockA ,j

9,'1Q,thepointJblocksflea and andwfllef Y type Vblock 8;

rd'extensions fof' The bott'om edge of the` the ,baseiblock 3 and thi?A u p the sides workin contact'with the typeblocls 18, Sl,and-10,`an`d sis,

127 `and'thepoint4 blocks"14at ,andi 141 are Qfa v the point sizeof' point blocks are f held 'betweeny the type blocks and the latter"V l `fastened y. The thype'bloels-Aareppositioned "laterglgll'ynvr lower part w-ith the Abottom wall of -ing a pusher 28,

with the mold' blade'centraloverthe nozzle openin'g20 bythe packing plate 17 of suitable thickness; and the type block 8` is sewhich in the base is indicated by 4d. It will' be seen that the rear type block 8 is rigidly secured to the base plate 3 and that the twov type blocks' are4 firmly secured together at one end only of the niol'd cavity. The front type block 9, 10 is secured to thebase 3 by a single screw 9a, the hole for which in the base block is indicated in Fig. 4 by9b`; Tie bars'5 securedv to the extensions 4 by bolts 51 are provided.

The type block 9, 10 is provided with a triangular vent opening 12 which gradually eiilarges toward the discharge end' of the mold; and this opening is ccnveiiieiitly produ'ced as shown, by constructing the block` in two parts, the lower member, or part 10 being grooved in the form of the vent opening and the Vuppervpart being secured to the said up-v the groove. In this openl triangular Ain, section to fit said opening, is adapted to slide, said pusher being loosely secured tothe mold blade 27 by lug 28L thereon (Fig. `V1) which seats in a rectangular hole in the blade. The two type` blockparts are secured together by the horizontal screws 10a, the holes for which are indicated by 10b in Fig. 4; by the downwardly extendingvertical screw 10c the holes for which are indicated by 10d; and by the upwardly extending screws 10e the holes Jfor per part covering which are indicated in Fig. 3 by 10f.

" front wall the dischargey end thereof.

The pressure screw 18 passing through the innerend against the front type block and is operated by an arm 19 adapted toV be connected with a suitable part-of the machine and operating in. timed relation to the castingand blade moving operations of the machine to periodically place pressure upon and remove it from the front type block near -The extension 3a of the base is adapted to support the gate severing device (not shown). Y' Y The type blocks are vertically grooved slightly at 8? and 8b respectively such grooves being inline withthe forward screw hole 11ar so as to lead lubricating medium to. both sides'ofthe moldV blade; the tie bar 5 above these grooves is provided with. a hole 5a leading thereto and a. groove 5b for receiving; the lubricant and conducting it to saidl hole 5a.

The water cooling channels or cavities may be traced most conveniently in Fig. 4..

The entrance and exit apertures 2 0a and 51 respectively are in registry or ahiiemeiit 4'of the base block 3' bears at its apertures with, supplly and discharge apertures in the inachinebase when the mold' is properly positioned and secured for operation. Upon entering'throughthe aperture 20, the water is conducted upwardly through they channel 21, then horizontally through channels 22 and 23 to the aperture 24 in the upper surfaceI off the base block 3. The water enters the block 10 through the aperture 25 (see Fig. 3) whence it is conducted upwardly to the channel 26 connecting with the longitudinal 'channelt 27, then through channel 29 to the aperture 30 alined with the aperture 31 in the-upper block 9. lith the aperture 31'is connected upwardly extending channel 32, leading to horizontal' channel 33, thence to channels 34 and 35' to aperture 36 in the side of'bl'ock 9. From this aperture the cool-- in medium traverses the hol'e 37 in the point" block 14a and entering through aperture 38 in type block Sti-.averses channels 39, 40, 41,42', 43 and 44 in said bl'ock S finding exit through aperture 45 in the lower surface of the block, whence, after passing the joint between the block 8 and the base 3, it eiitei's the block 3 through aperture 46 in the upper `surface thereof and traverses channels 47', 48, 49 and 50 finally discharging through aperture 51' in the bottoni surface oi' block 3, said discharge aperture being adapted to be in alinenient or registry with a suitable discharge conduit in the mold supporting partk of the type casting machine to which the mold is adapted to be secured by means of a screw inserted in slanting hole 52j (Fig. 1)`.

The joint the mold base block` 3, in proximity to thc entrance aperture 20 and the discharge aperture 51, is a tight joint because the fastening screw through hole 52 is between and near to said apertures. The joint between the. lower and upper members of type block 9.10` is also a tight one in proximity to the. apertures 3.0 and 31' because a fastening screw 10e is onv` each side of said apertures. Likewise the joints between the type blocks 8, 9y and'10 and the point blocl 14 are tight, they screws 11 traversing the holes 1IaA being located'V near to and: on each side of the 36,. 37 and 38 inthe type block 9, 10, the point block 14 and' the type block 8 respectively.

The joints between the type blocks and the base block in. proximity to the alined openings 24l in the basebloek 3V and 25v in the type block member 10, and 46 in the base block 3 and 45 in the type block 8 are not so tight as those joints just referredto because the type blocks are fastened vertically to the base block each by a single screw located at one side of the said alined openings-the screw 9a traversing hole 9b'to, secure the type block 10 and the screw 4c traversing the hole 4dl to secure type block 8. The ends of the type between the machine base and 'temeer i blocksy toward thedischa'rgefend ofthe are not ,secured togethen i nor'ito theg basa screwA 18 causes a,movementrelativelyto the,

base block, particularly ofthe' fronititypeV block at said discharge end'and consequently in proximity to. thefalned cavities.A The yrear type block is permitted to move slightly near` its i dischargel endiibecalusevof thefrtaper givene, to the packing piece 17 atflal -(Fig.` 1)such-f movement being adapted particularly vtoY take careof unequal expansion 'of thev variousv mold yparts duringoperation. Becauseofu this movement of oneA ofthe members constituting the joint and the fact that the alined apertures of theiwater cooling systemfare `between the fastenin screws and ythe-movable s discharge ends of the type,blocks,"a,reliably tight joint is diicult to-obtain, particularly when, as sometimes happens, typem'etal is accidentally lodged under the loose, discharge ends of the type blocks, or between them and the base blocl Leakage of cooling Water is liable to occur through and along thefjoint, and is particularly detrimental when. it reaches the mold cavity into `which molten p metal is introduced. Such. a1 possibilityI has heretofore always been present; becausethe `mold cavity 'is located at the forward endof the mold blade between the two type blocks and the joint referred to'is between mem bers 4forming the cavity. Leakage through the joint, which reachfesithe mold cavity has, as will readily be appreciated by those skilled in the art, a detrimental effectr not .only-upon -Y the mold cavity WallsV but tendsv to "produce explosive conditions when molten metal is introduced. c v f f j One of the objects of the present invention, as hereinbefore stated, is to control such leakage, and this is preferablyaccomplished, in

j the embodiment of the invention` illustrated,

` mosphere.

by providing a leakage interceptinggroovey 53 in the face of one ofthe mem ers forming the joint, for instance, the type block 9, 1.0 for one joint and thetype block 8 for the other joint, said groove being annularl to sur#A round completely vthe alined'apertures 24,125

for `one joint and 45, 46 for the other and` being each tapped by a leading-0E groove 54,k to drain or lead away anyleakage fromfthe alined apertures, preferably,as shovvn to one side of the type block, so that it may dis-y charge into the channels 55 provided in `the base block in proximity cto the upright Y:extensions LLand communicating with the vat- Obviously the form of the controlling f grooves is not of importance nor is their'particular location, save that they mustfinter-kk sect the joint around thejintersection of the fluid pressure ducts .and joint or lie between j the fluid pressure ducts and other ducts, cavif ties or ports Whichwould beinjuriously af-y fected by leakage and that they shall 'offerA a l whereby a jointv is Afacesssale.membersjoint` and: adapted the ysaid-4 duetand Vraway' fromy said j ducty intersecting i prising ibase and f of al printing form,

passageofleastresistancefor thejfree l n i y j 4chaifgegoiithe e block; moreover;theY actiongiof thecl'ampingj s Y, L :A 'typographie 1e members c assembled vvv ith. faces contact -berf` extending throughthe;` facethereof, and

frmed between VSaid-i Ybeingk ,j provided." with" communication@ vvithv said joint, and ,said v members also ubeing provided with means, j Y

located: inv the jointbetween said alined cavities `and said third away Yfrom cavity, to direct ksaid third cavity Huid escaping Y through said joint fromgsaidalinedcavitlesl l 2.Aiuid-cooled typographie mold comprisingfa' base block, a type block mounted j eing providedwith a e ,j y cooling1-iiuid duct intersecting the yjoint thereon," said blocks vb between"`said blocks, saidblocks providing ay moldcavity in communication with said metal, and, means ,in'the joint intermediate the' said cavityy todrect mold cavity cooling fluidv escaping through said joint fromV saidv duct.

3.A huidcooled typographic mold com" i" lprising al base block, type blocks secured togetherin spaced relation and .mounted 011 thefbase block 'toform a mold cavitylbef tween 'saidblocksadapted to receive molten type metal, saidV base block andsaid' typey blocks' being provided With a coolin fluid thej oint tbetween saidbase blocks being provided" `vvith means interev dlrect away, from lsaid mold cavity cooling fluid escaping through said'jointsfrom each ,mediate ythe ducts andthe mold rcavity VVto Y of saidncooling-iiuid ducts. Y

*4; ,A fluid-cooled typographie mold ycomtype-5 blocks, means `for securing said blocks one'sideJ of said mold cavity, Asaid blocks Y'being provided with .a4 coolmg" fluid [duct` and a groove inthe said ljoint theisaidldllct and direct away from said `'mold cavit f "Huid-,Cooled mori for type blocks,` `a mold block-and each of said typezblocks, and'saidy asy to receive molten type u together .to form .a i vmold cavity adapted to receive molten type* j metaLsald securingfmeans being located atfI J v f .1715i i i strip elements 1 comprising a -base block, blade mounted to fvvorkjV betweeny said typeblocksand upon saidbase block, said blocks and bladeforming a mold i cavity, .means for securing together and to rsaiddoase'v said type blocks block at oneend of said mold` cavityl Whereby'the type blocks memset;

are movable relfatrey tof4 the base?v loloki ab', the other end of Said cfwty, saidbase'bleek; and said type blocks being provided@ with zo l1frgefl1idi`d'uccs` intersectingthe joints 5 between Said base bleek' an@ each of' said type bocks at a: 'po'nt between the mold (avty and' the. means frf securing? nhefbype blbokf thebasehlnck. and: a; groeve im the salf jni-'nte` ntermndht'e the. mold cavity' andeeehosad duets taoadneetif,away4 from 10 the VYsad mol'd enmity cooling Huid escapingthlough; Sade' jbinfs 'from smid? ducts.

imes- KNIGHT.

Upsrff this:r patntmay 1e otinedl infme cents eamhgmyr addressing:theA Gnmmssioneri of., Patents, `v Washingtomjll'- 

